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Service Manual P6701B, P6703B & P6723 O/E Converters 070-9892-03 Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service.
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Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
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H Eliminates unexpected service expenses For Information and Ordering For more information or to order Service Assurance, contact your Tektronix representative and provide the information below. Service Assurance may not be available in locations outside the United States of America.
General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified. Only qualified personnel should perform service procedures. To Avoid Fire or Observe All Terminal Ratings.
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General Safety Summary Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION Double High Voltage (Earth) Terminal Refer to Manual Insulated P6701B, P6703B, and P6723 Service Manual...
This phone number is toll free in North America. After office hours, please leave a voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices. P6701B, P6703B, and P6723 Service Manual...
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Preface P6701B, P6703B, and P6723 Service Manual...
P6701B and P6703B Specifications The specifications in Tables 1 through 3 apply to a P6701B or P6703B O/E converter. The converter must have a warm-up period of at least 20 minutes and be in an environment that does not exceed the limits described in Table 1. Specifications for the P6701B and P6703B O/E converters fall into three categories: warranted, typical, and nominal characteristics.
P6701B and P6703B Specifications Table 1: P6701B and P6703B warranted electrical characteristics (cont.) Humidity Operating: 0- - 90% RH, tested at + 30 to + 50_ C Nonoperating: 0- - 90% RH, tested at + 30 to + 60_ C Altitude Operating: 4,572 m (15,000 ft) Nonoperating: 15,240 m (50,000 ft)
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P6701B and P6703B Specifications P6701B Normalized to 780nm at 1 V/mW ~ 0.8 at 850nm 1000 Wavelength (nm) P6703B ~ 1.1 at 1550 nm Normalized to 1310nm at 1 V/mW 1000 1200 1400 1600 Wavelength (nm) Figure 1: Typical wavelength dependent gain (25_ C ambient) P6701B, P6703B, and P6723 Service Manual...
P6701B and P6703B Specifications Nominal Characteristics Nominal characteristics (Table 3) describe guaranteed traits, but the traits do not have tolerance limits. Table 3: P6701B and P6703B nominal electrical characteristics Accepts up to 62.5 m core diameter, Numerical Aperture ≤ 0.29 Optical input coupling Optical fiber dressing >...
P6723 Specifications The specifications in Tables 4 through 6 apply to a P6723 O/E converter. The converter must have a warm-up period of at least 20 minutes and be in an environment that does not exceed the limits described in Table 4. Specifications for the P6723 O/E converter fall into three categories: warranted, typical, and nominal characteristics.
P6723 Specifications Typical Characteristics Typical characteristics (Table 5) describe typical but not guaranteed performance. Table 5: P6723 typical electrical characteristics Effective wavelength range 1100 to 1570 nm ≤ ± 15%, 20% Aberrations total Nominal Characteristics Nominal characteristics (Table 6) describe guaranteed traits, but the traits do not have tolerance limits.
P6701B and P6703B Performance Verification Use the following procedures to verify the warranted specifications of the P6701B and P6703B O/E converters. Before beginning these procedures, refer to page 12 and photocopy the test record and use it to record the performance test results.
P6701B and P6703B Performance Verification Output Zero 1. Attach 1103 powered P670XB output to voltmeter with 50 ohm termination. 2. Install optical dust cover on input to P670XB under test. 3. Check that output voltage is ≤ 1 mV. DC Conversion Gain NOTE.
P6701B and P6703B Performance Verification P6703B 1. Connect 1310 nm laser to attenuator. NOTE. The longer wavelengths of 1310 nm and especially 1550 nm are more sensitive to loss in fiber due to bending of the fiber than the short wavelength. The fiber bend radius of the P670XB fiber input should lay with >1-inch bend radius along the fiber’s entire length.
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P6701B and P6703B Performance Verification 3. Set the oscilloscope for 5 us/div on the horizontal scale and 5 mV/div (or 5 uW/div) for the vertical scale. Trigger the scope on the negative edge of the trace and set ground to the middle of the screen. This is equivalent to 1%/div.
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P6701B and P6703B Performance Verification Test record Probe Model/Serial Number: Certificate Number: Temperature: RH %: Date of Calibration: Technician: Performance test Minimum Incoming Outgoing Maximum 15 nW (P6701B) Noise Equivalent Power 7 nW (P6703B) Output zero 1 mV DC conversion gain 92 mV 108 mV AC conversion gain...
5 pW, Max power > 1 mW, cali- sensor HP 81530A and brated from 700 nm - - 1600 nm HP 81531A 1310 nm digital optical 52 MHz - - 622 MHz Tektronix CTS710/CTS750 signal source Sampling oscilloscope oscilloscope with Tekprobe II Tektronix TDS784x interface...
P6723 Performance Verification Output Amplitude NOTE. Make sure that the optical connector ends of both the fiber jumpers and the input fiber of the O/E converter under test are well cleaned before perform- ing this step. Use isopropyl alcohol, lint-free lense paper and clean compressed air to clean the fiber ferrule ends.
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P6723 Performance Verification Test record Probe Model/Serial Number: Certificate Number: Temperature: RH %: Date of Calibration: Technician: Performance test Minimum Incoming Outgoing Maximum 0.69 V 1.1 V Output Amplitude P6701B, P6703B, and P6723 Service Manual...
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P6723 Performance Verification P6701B, P6703B, and P6723 Service Manual...
Maintenance To keep the P6701B, P6703B, and P6723 O/E Converters in good operating condition, observe proper cleaning and handling techniques. Cleaning the Optical Connectors Small dust particles and oils can easily contaminate fiber-optic connectors and reduce or block the signal. Take care to preserve the integrity your connectors by keeping them free of contamination.
Maintenance NOTE. Cleaning kits for fiber-optic connectors are available from a number of suppliers. Cleaning the External Parts Remove dirt with a soft cloth dampened in a mild detergent and water solution or isopropyl alcohol. CAUTION. To avoid damaging the probe, use only a mild detergent and water solution or isopropyl alcohol;...
Maintenance CAUTION. To maintain the high performance (low return loss) of the O/E converter, connect an adapter and cable between the input of the O/E converter and the device under test. When you make connections to other devices, leave the adapter and cable in place to protect the optical connector of the O/E converter from wear.
Maintenance Short pin Figure 3: Location of short interface pin Removing and Replacing the TekProbe Interface Collar 1. To remove the collar, firmly pull the collar off by hand. 2. To replace the collar, align the smaller group of pins with the smaller of the two holes in the interface collar and align the tabs with the slots.
Options Option 95 documents the measurements taken during calibration. Option FR documents the frequency response of the O/E converter. P6701B, P6703B, and P6723 Service Manual...
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Options P6701B, P6703B, and P6723 Service Manual...
Replaceable Parts NOTE: Parts illustrated with dashed lines are not replaceable Figure 5: Replaceable parts Figure 6: Standard accessories Figure 7: Optional accessories P6701B, P6703B, and P6723 Service Manual...
Replaceable Parts Replaceable parts list Fig. & Tektronix Serial no. Serial no. index number part number effective discont’d Name & description Mfr. code Mfr. part number 5- - 1 131- - 3627- - 01 CONTACT,ELEC:GOLD PLATED TIP 18359 P- - 6158- - 1...
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PO BOX 547 62712 SEIKO INSTRUMENTS USA INC ELECTRONIC COMPONENTS DIV TORRANCE, CA 90505 2990 W LOMITA BLVD 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR BEAVERTON, OR 97077- - 0001 PO BOX 500 TK2469 UNITREK CORPORATION 3000 LEWIS & CLARK HWY...
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Replaceable Parts P6701B, P6703B, and P6723 Service Manual...
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